I. Africa
Tan Desai, Director-General of the World Health Organization, did not actually mention Africa by name, but the amount of vaccines in Africa is very small. In addition, other countries have to complete their own injections before considering donating or selling them, which has led to some people in the world who have been vaccinated, while others have not been vaccinated at all. In this case, the virus will spread freely among people who have not been vaccinated, and may even mutate into a virus with more infectivity and higher mortality. Therefore, Tan Desai's appeal is actually reasonable.
Second, there is no way to implement it.
Although Tan Desai is calling for this matter, there is no way to implement it. For example, in those poor and backward countries, it is impossible to say that vaccination is completed entirely by donation, but also by purchase. Do you have that much money to buy? This is uncertain. Secondly, these countries don't know enough about COVID-19. People may not buy vaccines because they don't know enough about COVID-19 and think that COVID-19 is just a big flu.
Third, the status quo cannot be changed.
Unless the whole world acts together, the status quo cannot be changed. Even the United States, a powerful country in our fixed impression, will be countered by COVID-19 mutant because of poor vaccination. If we want to change the status quo, only countries around the world can unite as one, implement city closure and quarantine, and clear medical records. Otherwise, the mutant strains in COVID-19 will continue to exist, not to mention that poor countries cannot be vaccinated. Even if rich countries inject booster now, there will be epidemic prevention loopholes due to the change of COVID-19 epidemic situation.